2006ApJ...648L.139T

Query : 2006ApJ...648L.139T

2006ApJ...648L.139T - Astrophys. J., 648, L139-L142 (2006/September-2)

Cyclotron resonance energies at a low X-ray luminosity: A0535+262 observed with Suzaku.

TERADA Y., MIHARA T., NAKAJIMA M., SUZUKI M., ISOBE N., MAKISHIMA K., TAKAHASHI H., ENOTO T., KOKUBUN M., KITAGUCHI T., NAIK S., DOTANI T., NAGASE F., TANAKA T., WATANABE S., KITAMOTO S., SUDOH K., YOSHIDA A., NAKAGAWA Y., SUGITA S., KOHMURA T., KOTANI T., YONETOKU D., ANGELINI L., COTTAM J., MUKAI K., KELLEY R., SOONG Y., BAUTZ M., KISSEL S. and DOTY J.

Abstract (from CDS):

The binary X-ray pulsar A0535+262 was observed with the Suzaku X-ray observatory on 2005 September 14 for a net exposure of 22 ks. The source was in the declining phase of a minor outburst, exhibiting 3-50 keV luminosity of ∼3.7x10³⁵ ergs/s at an assumed distance of 2 kpc. In spite of the very low source intensity (about 30 mcrab at 20 keV), its electron cyclotron resonance was detected clearly with the Suzaku Hard X-Ray Detector, in absorption at about 45 keV. The resonance energy is found to be essentially the same as that measured when the source is almost 2 orders of magnitude more luminous. These results are compared with the luminosity-dependent changes in the cyclotron resonance energy, observed from 4U 0115+63 and X0331+53.

Abstract Copyright: ∼

Journal keyword(s): Magnetic Fields - Stars: Pulsars: Individual: Alphanumeric: A0535+26 - Stars: Neutron - X-Rays: Binaries

Simbad objects: 5

Full paper

View the references in ADS

Number of rows : 5

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	V* V635 Cas	HXB	01 18 31.9704955824	+63 44 33.072603144	17.05	16.64	15.19	14.34	13.22	B0.2Ve	791	0
2	V* BQ Cam	HXB	03 34 59.9116110096	+53 10 23.296879776		17.16	15.42	14.26	13.04	O8.5Ve	525	1
3	M 1	SNR	05 34 31.8	+22 01 03						~	6516	1
4	V* CM Tau	Psr	05 34 31.9474694616	+22 00 52.153698024						~	5476	0
5	HD 245770	HXB	05 38 54.5748918624	+26 18 56.836952784	9.30	9.84	9.39	8.77	8.30	O9/B0III/Ve	1045	0

To bookmark this query, right click on this link: simbad:objects in 2006ApJ...648L.139T and select 'bookmark this link' or equivalent in the popup menu